How to impl boost::enable_shared_from_this?

[Nobody/Anonymous]

Hi,I am study the Loki::SmartPtr,

I think the boost::enable_shared_from_this is very good implement,
we can get the smart pointer form a originality pointer of a class,
then we can use this function from the class's member function.
like this:

#include <boost/smart_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>

class CObj : public boost::enable_shared_from_this<CObj>
{
public:
    CObj()
    {
        printf("CObj");
    }
    ~CObj()
    {
        printf("CObj");
    }

    void Action();
    void Action2();
};

void Func(boost::shared_ptr<CObj> ptr)
{
    ptr->Action2();
}

void CObj::Action()
{
////////////////////////////

    boost::shared_ptr<CObj> ptr = shared_from_this();
    Func(ptr);

////////////////////////////
}
void CObj::Action2()
{
    printf("Action2");
}

int main()
{
    boost::shared_ptr<CObj> ptr(new CObj);
    ptr->Action();
}

thanks!